PEB 4364 T V1.2 Infineon Technologies, PEB 4364 T V1.2 Datasheet - Page 57

• Manufacturer Part Number: PEB 4364 T V1.2
• Description: IC SLIC VOICE ACCESS PDSO-36
• Manufacturer: Infineon Technologies
• Series: DuSLICr

Specifications of PEB 4364 T V1.2

• Function: Dual Channel Subscriber Line Interface Circuit (DuSLIC)
• Interface: IOM-2, PCM
• Number Of Circuits: 2
• Voltage - Supply: 3.3 V ~ 5 V
• Current - Supply: 105mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-PDSO
• Includes: DTMF Generator and Decoder, Line Echo Cancellation (LEC), Teletax (TTX) Generation, Universal Tone Detection (UTD)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEB4364TV1.2XT; SP000007728

DuSLIC
Functional Description
The enhanced Signal Processing capabilities are available only for the DuSLIC-E/-E2/-P
versions, with an exception of DTMF generation.
The DTMF generation is available for all DuSLIC versions.
The functions of the EDSP are configured and controlled by POP register settings (see
Chapter
5.2.3).
2.8.1
DTMF Generation and Detection
Dual Tone Multi-Frequency (DTMF) is a signaling scheme using voice frequency tones
to signal dialing information. A DTMF signal is the sum of two tones, one from a low
group (697–941 Hz) and one from a high group (1209–1633 Hz), with each group
containing four individual tones. This scheme allows sixteen unique combinations. Ten
of these codes represent the numbers from zero through nine on the telephone keypad,
the remaining six codes (*, #, A, B, C, D) are reserved for special signaling. The buttons
are arranged in a matrix, with the rows determining the low group tones, and the columns
determining the high group tone for each button.
In all SLICOFI-2x codec versions, the sixteen standard DTMF tone pairs can be
generated independently in each channel via two integrated tone generators.
Alternatively, the frequency and amplitude of the tone generators can be programmed
individually via the digital interface. Each tone generator can be switched on and off. The
generated DTMF tone signals meet the frequency variation tolerances specified in the
ITU-T Q.23 recommendation.
1)
Both Channels A and B of SLICOFI-2
have a powerful built-in DTMF decoder that will
meet most national requirements. The receiver algorithm performance meets the quality
criteria for central office/exchange applications. It complies with the requirements of
ITU-T Q.24, Bellcore GR-30-CORE (TR-NWT-000506), and Deutsche Telekom network
(BAPT 223 ZV 5, Approval Specification of the Federal Office for Post and
Telecommunications, Germany), among others.
Note: DTMF Detection is only available for DuSLIC-E/-E2/-P
The performance of the algorithm can be adapted according to the needs of the
application via the digital interface (detection level, twist, bandwidth, and center
frequency of the notch filter).
Preliminary Data Sheet
57
DS3, 2003-07-11